<div class="pf-c-input-group{{#if input-group--modifier}} {{input-group--modifier}}{{/if}}" 
  {{#if input-group--attribute}}
    {{{input-group--attribute}}}
  {{/if}}
  {{#if input-group__id}}
    id="{{input-group__id}}"
  {{/if}}>
  {{> @partial-block}}
</div>
